alpha
Input Stack:| alpha: String | | TimeSeriesExpr |
|
⇨ |
Output Stack: |
Set the alpha value for the colors on the line. The value should be a two digit hex number
where 00 is transparent and ff is opaque.
Since :color includes its own alpha channel, the order of operations matters:
if :color is applied after :alpha, it will override the alpha setting. However, :alpha
applied after :color will modify the alpha channel of the previously set color.
Parameters
- alpha: A two-digit hexadecimal value from
00 (transparent) to ff (opaque)
Examples
Basic alpha transparency applied to a stacked area chart:
| Before | After |
 |  |
name,sps,:eq,
:sum,
:stack
| name,sps,:eq,
:sum,
:stack,
40,:alpha
|
Applying alpha after color modifies the alpha channel of the color:
| Before | After |
 |  |
name,sps,:eq,
:sum,
:stack,
f00,:color
| name,sps,:eq,
:sum,
:stack,
f00,:color,
40,:alpha
|
- :color - Set explicit color (interaction depends on order of operations)
- :palette - Set color palette for multiple lines